Foot-pqwer hammer



(No Model.) 2 Sheets-Sheet 1. 0. J. RUNDQUIST.

FOOT POWER HAMMER.

No. 379,818. Patented Mar. 20, 1888.

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(No Model.) 2 Sheets-Sheet 2. O. J. RUNDQUIST.

v FOOT POWER HAMMER. No. 379,818. Patented Mar. 20, 18,88.

1.. IIII F U H $159 .2 E JV UNITED STATES PATENT OFFICE.

CHARLES J. RUNDQUIST, or OPHEIM, ILLlNOIS.

FOOT=POWER HAMMER.

$PECIFICA'IION forming part of Letters Patent No. 379,818, dated March 20, 1888.

Application filed January 3, 1888. Serial No. 259,581. (No model.)

To (LZZ whom it may concern.-

Beitknown that I, CHARLES J. RUNDQUIST, a citizen of the United States, residing at Opheim, in the county of Henry and State of Illinois, have invented certain new and useful Improvements in Foot-Power Hammers, of

which the following is a specification.

This invention relates to that class of hammers which are operated by foot-power, and which are adapted,mainly, for the use of blacksmiths; and the invention consists in an improved frame for supporting the working parts, in improved means for adjusting the hammer vertically and adjusting the other parts to correspond therewith, in improved means for adjusting the hammer toward and from the anvil, in improved means for actuating the hammer, in improved means of increasing and diminishing the force of the blow of the hammer, and in combinations and cnstructions hereinafter described and claimed.

In the accompanying drawings, which illustrate a foot-power hammer embodying my invention, Figure 1 is a side elevation; Fig. 2, a sectional elevation of the parts shown at Fig. 3 and in the line 2 2 of said figure, showing the lower end of the screw-rods used for adj usting the height of the hammer-carrying frame or carriage; Fig. 3, a top plan of the adjustable hammer-carrying carriage, a sectional plan of the frame-posts, and the screw-rods for adj usting the hammercarrying carriage,and part of the hammer-handle; Fig. l, a detail, a top plan of the bumper and its carrying-bar, and horizontal sectional plan of the frame-bars sup porting it and plan of the attaching-hooks; Fig. 5, a sectional elevation of part of the device in the line 5in Fig. 6; Fig. 6,an elevation,partly in section, in the line 66 in Fig. 1, except that the ham mer-handle is shown broken away back of the line 1 1.

The main frame is formed of base or foundation bars AA, to which are bolted the upright transverse frame-bars a a and crossed braces a which crossed braces are bolted to the bars a a and to the bars A, as shown. A bar, a, bolted to each side of the frame, extends to and is bolted to the anvil-block B, which thus forms a part of the main frame. This structme will form a simple, strong, solid, substantial iron frame, and such as is very desirable and useful in hammers of this class.

C O are bars, one at each side of the frame, and constitute parts of the hammer-carriage, a top plan of which is shown at Fig. 3. The bars 0 are adjustable in height by means of screw-rods 0, one screw-rod to each bar 0. The rods 0 each pass through a loop or eye, 0, on the top frame-brace, a, which is above and adjacent to each, and the screw-threaded portion of each rod 0' passes through screwthreaded holes in lugs c, which project from the bars 0. The rods 0 are not screw-threaded where they pass through the eyes 0 and have each a fixed collar, 0, above and below the eye 0 The upper ends, 0 of the rods 0 are square in their cross-sections, so that by means of a wrench placed thereon they may be turned to raise and lower the bars 0 in an evident manner. The bars 0 are held, after the adjustment last described, by means of clamps 0 one of which is seated over each frame-bar a a, and the ends of which pass through the adjacent part of a bar, 0, and are tightened on the bars a a by nuts 0 to fix the bars 0 firmly at any desired height to which they may be adjusted by the screw-rods 0. Prior to adjusting the bars G the nuts 0 are turned to loosen the grasp of the clamps c on the bars a a.

D is a rock-shaft supported in suitable bearings, (Z, which are fixed to the bars G.

E is aclamp-plate,its ends bent downwardly, and provided with elongated holes, through which the rock-shaft D passes. Eyebolts F encircle the shaft D, and their stem ends pass through the clamp-plate E and through another clamp-plate,E, located above the plate E, and are provided with nuts f. E is bent to form a seat, 6, for the handle 9 of the hammer G.

H H are arms or levers, each having a slot, h.

The arms or levers H H are located be-' The clampplate IOO tween the clamp E and rock-shaft D, and pro-l ject forwardly therefrom, for purposes hereinafter described. The eyebolts F pass through the slots h. When the nuts f are loosenedon the eyebolts, the hammer-handle 9 may be moved lengthwise of itself to adjust it in its seat (2, and the levers H H may also be adj usted lengthwise of themselves, and the handlegand levers H H are both securely 10 held after adjustment by tightening the nuts f on the eyebolts F. The arm or lever H is hinged in the upper slotted end of a link-rod, I, by a pivot-bolt, 'i.

The bolt 73 may be seated in either of aseries x5 of holes, 2', in the link-rod I. The lower end of the rod I is hinged to the end of a spring, J, which is secured at its other end to a standard, j, and exerts an upwardly-acting force on the lever H, the degree of which force is regulated or adjusted by adjusting the bolt z in the series of holes t" in the link I, and further adj usted by adjusting the lever H lengthwise on the rock-shaft D, as hereinbefore described. When the bars 0 are adjusted to raise or lower the rock-shaft D, the lever H can be adjusted, or the link I, to correspond, by the means last described; and by adjusting the lever H lengthwise of itself, as hereinbefore described, the force with which the spring J acts thereon 0 may be controlled to a limited extent.

K is a lever hinged at one end to a clipbolt, is, which is secured to one of the framebars a. A link-rod, L, connects the lever K, near its mid-length portion, with the end of the lever H. The link-rod L is forked where it receives the lever H, and is provided with a series of holes, Z, for a pivot-bolt, Z, which hinges it to the lever H. When the bars G are adjusted in higher or lower positions, as

0 hereinbefore described, the holes Z are used to correspondingly adjust the lever H on the link L, and by adjusting the lever H lengthwise of itself, as herein described, the force exerted upon the hammer by the operators foot, as

4 5 hereinafter described, may be increased or diminished.

M is a stirrup adjustable on and lengthwise of one of the bars a, and is held after adj ustmentby a bolt, m. A stud or pin, m, projects from the stirrup M and forms a pin-pivot or journal for a lever, N. The lever N is hinged at one end to the power end of the lever K by a link-rod, n, and at its other end to a link, 1?, which is also hinged to the end of the pedallever Q, the pedal end of which is convenient to the anvil-block B, and the central part of which is hinged or journaled to a standard, g, which projects from the anvil block. The lever N has a series of holes, at, for the pin m, and when the stirrup M is adjusted lengthwise of the bar a the pin m may be inserted in a hole, 12, adjacent, and thus the fulcrum of the lever N be changed lengthwise of said lever to increase or diminish the force which may be given to the blow of the hammer by the operator pressing downwardly with his foot on the power end of the lever Q. The spring J restores the parts to their normal positions after each blow of the hammer.

Anvils B, of any construction suitable to the work to be done, maybe used on the block B, and the hammer may be adjusted, as hereinbefore described, toward or from the anvil, as may be required in different kinds of Work.

Operating the hammer with his foot, the

operator may not only give a harder blow, but his hands are left free to manipulate the iron under the hammer. ,To arrest the upward movement of the hammer at the proper time, I provide a rubber bumper-block, R, seated above the hammer-handle in a socket, T, which projects, from a bar, 1", which is secured to the bars a a by hook-bolts 1, by means of which the bar 1* and the bumper it carries may be adjusted, in an evident manner, in higher or lower planes, to suit the vertical adjustments of the ham mer-carriage.

If preferred, the lever K may be connected with and operated by any suitable engine or other motor.

What I claim as new is- 1. In a foot-powenhammer frame, in combination, base-bars A, upright frame-bars a a, having connecting portions a bolted to the base A, ties 01. a, crossed braces a bars a, and anvil-block B, substantially as and for the purpose specified.

2. In a power-hammer, in combination with frame-bars a a, bars 0, having a rock-shaft, D, journaled thereto, thehammer-handlemounted on the shaft D, the bar (1 having an eye, 0, screw-rod c, and lugs 0 projecting from the bars 0, whereby the hammer-carriage may be adjusted vertically, substantially as described.

3. In a power-hammer, in combination with frame-bars a a, bars 0, having a rock-shaft, D, journaled thereto, clamps c, the hammer-handle mounted on the shaft D, the bar a having an eye, a", screw-rod c, and lugs 0 projecting from the bars 0, whereby the hammer-carriage may be adjusted and secured after adjustment vertically, substantially as described.

4. In apower-hammer, in combination with frame-bars a a, bars 0, having a rock-shaft, D, j ournaled thereto, thehammer-handle mounted on the shaft D, the bar a having an eye, 0 screw-rod 0, having collars c, and lugs 0 projecting from the bars 0, whereby the hammercarriage may be adjusted vertically, substantially as described.

5. In combination with the rockshaft D, carried by vertically-adjustable bars, a clampplate, E, and eyebolts F, the slotted and adjustable lever H, link I, having series of holes 01, and spring J, whereby the tension of the spring may be controlled to suit vertical adjustments of the hammer-carriage, substantially as described.

6. In combination with a rock-shaft, D, carried by vertically-adj ustable bars, a clampplate, E, and eyebolts F, the slotted and adj ustable lever H,'and a link, L, having series of holes Z, connecting it with suitable actuating mechanism, whereby the force of the ham mer-blow may be regulated and hammer-carriage be adjusted vertically without disturbing the actuating mechanism, substantially as described.

7. In combination with a rock-shaft, D, clamps E and E, and eyebolts F, the hammer G, the handle of which is adjustable between the bolts E and E, substantially as described.

8. In combination, frame-bars a a, adjustable plates 0, rock-shaft D, clampplates E E, slotted leversH H, and a hammer and handle, G g, substantially as and for the purpose speci fied.

9. In combination, frame-bars a a, adj ust' able plates 0, rock-shaft D, clamp-plates E E, slotted levers H H, and a hammer and handle, G g, a spring, J, connected with the lever H, and suitable actuating mechanism connected with the lever H, substantially as and for the purpose specified.

10. In combination with a rockshaft, D, and clamp-plates held thereto by eyebolts F, the adjustable levers H H, and hammer and handle G g, substantially as and for the purpose specified.

11. In combination with the rock-shaft D and ham mer mounted thereon, the lever H,link L, levers K, N, and Q, and links P a, substantially as and for the purpose specified.

12. In a foot-power hammer,in combination with the lovers K, N, Q, and H and their connecting-links, and the hammer and rockshaft D, the adjustable fulcrum m for the lever N, substantially as and for the purpose specified.

18. In combination with the adjustable bars 0, the rock-shaft D, thehammer and its actuating mechanism, the bumper R, fixed to a bar, 1", and the hook-bolts 1", for adjusting the bumper vertically on the bars a to suit vertical adjustments of the hammer-carriage, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES J. RUNDQUIST.

\Vi tnesses:

CHAS. A. STEPHENcoN, ED. N. STEPHENSON. 

